Publication:
Effect of rhodium additive on the reduction behaviour of iron oxide in carbon monoxide atmosphere [Kesan penambahan rodium terhadap tindak balas penurunan ferum oksida di dalam atmosfera karbon monoksida]

Simple item page
dc.contributor.affiliationsFaculty of Science and Technology
dc.contributor.affiliationsUniversiti Sains Islam Malaysia (USIM)
dc.contributor.affiliationsUniversiti Kebangsaan Malaysia (UKM)
dc.contributor.affiliationsUniversiti Pertahanan Nasional Malaysia (UPNM)
dc.contributor.authorSaharuddin T.S.T.en_US
dc.contributor.authorSalleh F.en_US
dc.contributor.authorSamsuri A.en_US
dc.contributor.authorDzakaria N.en_US
dc.contributor.authorOthaman R.en_US
dc.contributor.authorKassim M.B.en_US
dc.contributor.authorMohammad Hisham M.W.en_US
dc.contributor.authorYarmo M.A.en_US
dc.date.accessioned2024-05-28T08:31:12Z
dc.date.available2024-05-28T08:31:12Z
dc.date.issued2017
dc.description.abstractThis study was carry out to investigate the effect of 3% rhodium on the reduction behaviour of iron oxide by (10%, v/v) carbon monoxide in nitrogen as a reductant. The Rh/Fe2O3 samples were prepared by impregnation method and the reduction behavior of Rh/Fe2O3 and pure Fe2O3 were investigated by using temperature programmed reduction (TPR). The prepared samples and the reduced phases were characterized by X-ray diffraction spectroscopy (XRD). The results indicate that Rh/Fe2O3 give a better reducibility compared to Fe2O3 with a complete reduction at 650 �C, which is 250 �C lower than Fe2O3. The TPR results indicate that the reduction of Fe2O3 proceed in three steps reduction (Fe2O3 ? Fe3O4 ? FeO ? Fe) with Fe3O4 and FeO as intermediate states while for Rh/Fe2O3 as the TPR result showed the overlapping of second and third peak (Fe3O4 ? FeO and FeO ? Fe) at higher temperature. Addition of Rh may possibly reduce the formation of stable FeO that stable at higher temperature by accelerates the direct reduction of Fe3O4? Fe so the reduction process of Fe2O3 become faster. The XRD pattern shows the diffraction peaks of Rh/Fe2O3 is more intense with improved crystallinity for the characteristic peaks of Fe2O3 compared to pure Fe2O3. No visible sign of rhodium particles peaks in the XRD spectrum that indicates the Rh particles loaded onto the iron oxide are well dispersed. The well dispersed Rh onto the iron oxide and the ability to reduce the sintering effect to the iron oxide also has been confirmed by FESEM. The study shows that addition of Rh gives a better reducibility of iron oxide is also due to the ability of Rh to interact with CO as confirmed by the thermodynamic data with higher surface area compared to Fe2O3. � 2017, Malaysian Society of Analytical Sciences. All rights reserved.
dc.description.natureFinalen_US
dc.identifier.doi10.17576/mjas-2017-2104-17
dc.identifier.epage913
dc.identifier.issn13942506
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85028576710
dc.identifier.spage907
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85028576710&doi=10.17576%2fmjas-2017-2104-17&partnerID=40&md5=4bd67318f16b34d26c526691e96f2d29
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/8976
dc.identifier.volume21
dc.languageEnglish
dc.language.isoen_USen_US
dc.publisherMalaysian Society of Analytical Sciencesen_US
dc.relation.ispartofMalaysian Journal of Analytical Sciences
dc.sourceScopus
dc.subjectCarbon monoxideen_US
dc.subjectFerum oxideen_US
dc.subjectRhodiumen_US
dc.subjectTemperature programmed reductionen_US
dc.titleEffect of rhodium additive on the reduction behaviour of iron oxide in carbon monoxide atmosphere [Kesan penambahan rodium terhadap tindak balas penurunan ferum oksida di dalam atmosfera karbon monoksida]en_US
dc.typeArticleen_US
dspace.entity.typePublication

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
EFDC68~1.PDF
Size:
1.51 MB
Format:
Adobe Portable Document Format
Download

Collections

Scopus